64

Lesson 64 of 84 ยท Matter and Atoms

Experimentโญ 30 XP๐Ÿงช Potion Kitchen

Mass and Volume (Part 2)

๐ŸงชLab Brief #64

Matter and Atoms.

๐ŸŽฏ Your mission

Run the experiment. Find out what really happens.

โšก The twist

If it bubbles, something invisible is escaping.

๐Ÿคฏ

Mind = Blown

๐Ÿ’ง Hot water can freeze faster than cold water under the right conditions. Nobody fully understands why.

๐Ÿ”ฎ

Make a hypothesis first

Guess: will the fizz be loud, soft, or none at all?

What You'll Learn

Distillation separates mixtures based on different boiling points. Heating salt water causes water to evaporate and condense, leaving salt behind and producing fresh water.

Key Words

  • solubility
  • concentration

Materials Needed

  • plastic bottles
  • balloons
  • measuring cups
  • paper towels
  • thermometer
  • strainer

Safety First

  • Handle glass items carefully to avoid breakage.
  • Do not mix unknown chemicals together.
  • Tie back long hair before starting the experiment.

Steps

Step 1 โ€” Read

Review the background information on Matter and Atoms before starting.

Step 2 โ€” Do

Test 5 household liquids (vinegar, milk, lemon juice, baking soda water, soap) with pH paper. Classify each as acid, base, or neutral.

Step 3 โ€” Observe

Observe what happens and describe it in detail.

Step 4 โ€” Record

Record your observations in your science journal with measurements and descriptions.

Check Your Understanding

Question 1

1 of 3

What holds atoms together in a molecule?

๐ŸŒ

Where you see this in real life

Your toothpaste, your soap, even your breakfast involves this.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Ask a grown-up to help you mix two safe kitchen things. Predict what will happen first.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œWhat's something we cook that mixes things together this way?โ€

๐ŸŽฏ

Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

๐Ÿ”ฌShare card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

๐Ÿ–จ๏ธ

Checkout complete lesson on Matter and Atoms for 7th Grade

Get the full Matter and Atoms track as a printable PDF โ€” all lessons, worksheets, and answer keys.

View in Shop

Your Cart (0)

Your cart is empty

Browse our shop to find activities your kids will love

Mass and Volume (Part 2) โ€” Matter and Atoms | 7th Grade Science | LittleActivity | LittleActivity